41 lines
822 B
PHP
41 lines
822 B
PHP
<?php
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namespace Core\Commerce\Data;
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use Core\Commerce\Models\Coupon;
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/**
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* Coupon validation result.
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*/
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class CouponValidationResult
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{
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public function __construct(
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public readonly bool $isValid,
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public readonly ?Coupon $coupon,
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public readonly ?string $error,
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) {}
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public static function valid(Coupon $coupon): self
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{
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return new self(true, $coupon, null);
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}
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public static function invalid(string $error): self
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{
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return new self(false, null, $error);
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}
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public function isValid(): bool
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{
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return $this->isValid;
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}
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public function getDiscount(float $amount): float
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{
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if (! $this->isValid || ! $this->coupon) {
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return 0;
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}
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return $this->coupon->calculateDiscount($amount);
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}
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}
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